Illig, J.; Hotho, A.; Jäschke, R. & Stumme, G. (to appear), A Comparison of content-based Tag Recommendations in Folksonomy Systems, in 'Postproceedings of the International Conference on Knowledge Processing in Practice (KPP2007)' , Springer, .

Hotho, A.; Jäschke, R.; Benz, D.; Grahl, M.; Krause, B.; Schmitz, C. & Stumme, G. (2009), Social Bookmarking am Beispiel BibSonomy, in Andreas Blumauer & Tassilo Pellegrini, ed., 'Social Semantic Web' , Springer, Berlin, Heidelberg , pp. 363--391 .

Markines, B.; Cattuto, C.; Menczer, F.; Benz, D.; Hotho, A. & Stumme, G. (2009), Evaluating Similarity Measures for Emergent Semantics of Social Tagging, in '18th International World Wide Web Conference' , pp. 641--641 .

Alani, H.; Staab, S. & Stumme, G., ed. (2008), Proceedings of the Dagstuhl Seminar on Social Web Communities , Schloss Dagstuhl .

Benz, D.; Grobelnik, M.; Hotho, A.; Jäschke, R.; Mladenic, D.; Servedio, V. D. P.; Sizov, S. & Szomszor, M. (2008), Analyzing Tag Semantics Across Collaborative Tagging Systems, in Harith Alani; Steffen Staab & Gerd Stumme, ed., 'Proceedings of the Dagstuhl Seminar on Social Web Communities' .

Cattuto, C.; Benz, D.; Hotho, A. & Stumme, G. (2008), Semantic Analysis of Tag Similarity Measures in Collaborative Tagging Systems, in 'Proceedings of the 3rd Workshop on Ontology Learning and Population (OLP3)' , pp. 39--43 .

Cattuto, C.; Benz, D.; Hotho, A. & Stumme, G. (2008), Semantic Grounding of Tag Relatedness in Social Bookmarking Systems, in Amit P. Sheth; Steffen Staab; Mike Dean; Massimo Paolucci; Diana Maynard; Timothy W. Finin & Krishnaprasad Thirunarayan, ed., 'The Semantic Web -- ISWC 2008, Proc.Intl. Semantic Web Conference 2008' , Springer, Heidelberg , pp. 615--631 .

Jäschke, R.; Krause, B.; Hotho, A. & Stumme, G. (2008), Logsonomy -- A Search Engine Folksonomy, in 'Proceedings of the Second International Conference on Weblogs and Social Media(ICWSM 2008)' , AAAI Press, .

Krause, B.; Hotho, A. & Stumme, G. (2008), A Comparison of Social Bookmarking with Traditional Search, in Craig Macdonald; Iadh Ounis; Vassilis Plachouras; Ian Ruthven & Ryen W. White, ed., '30th European Conference on IR Research, ECIR 2008' , Springer, Glasgow, UK , pp. 101-113 .

Krause, B.; Jäschke, R.; Hotho, A. & Stumme, G. (2008), Logsonomy - Social Information Retrieval with Logdata, in 'HT '08: Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia' , ACM, New York, NY, USA , pp. 157--166 .

Krause, B.; Schmitz, C.; Hotho, A. & Stumme, G. (2008), The Anti-Social Tagger - Detecting Spam in Social Bookmarking Systems, in 'Proc. of the Fourth International Workshop on Adversarial Information Retrieval on the Web' .

Benz, D. & Hotho, A. (2007), Position Paper: Ontology Learning from Folksonomies, in Alexander Hinneburg, ed., 'Workshop Proceedings of Lernen - Wissensentdeckung - Adaptivität (LWA 2007)' , Martin-Luther-Universität Halle-Wittenberg, , pp. 109--112 .

Cattuto, C.; Schmitz, C.; Baldassarri, A.; Servedio, V. D. P.; Loreto, V.; Hotho, A.; Grahl, M. & Stumme, G. (2007), 'Network Properties of Folksonomies', AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering'' 20 (4), 245-262.

Grahl, M.; Hotho, A. & Stumme, G. (2007), Conceptual Clustering of Social Bookmarking Sites, in '7th International Conference on Knowledge Management (I-KNOW '07)' , Know-Center, Graz, Austria , pp. 356-364 .

Jäschke, R.; Grahl, M.; Hotho, A.; Krause, B.; Schmitz, C. & Stumme, G. (2007), Organizing Publications and Bookmarks in BibSonomy, in Harith Alani; Natasha Noy; Gerd Stumme; Peter Mika; York Sure & Denny Vrandecic, ed., 'Workshop on Social and Collaborative Construction of Structured Knowledge (CKC 2007) at WWW 2007' .

Hotho, A.; Jäschke, R.; Schmitz, C. & Stumme, G. (2006), BibSonomy: A Social Bookmark and Publication Sharing System, in Aldo de Moor; Simon Polovina & Harry Delugach, ed., 'Proceedings of the First Conceptual Structures Tool Interoperability Workshop at the 14th International Conference on Conceptual Structures' , Aalborg Universitetsforlag, Aalborg , pp. 87-102 .

Hotho, A.; Jäschke, R.; Schmitz, C. & Stumme, G. (2006), Das Entstehen von Semantik in BibSonomy, in 'Social Software in der Wertschöpfung' , Nomos, Baden-Baden .

Hotho, A.; Jäschke, R.; Schmitz, C. & Stumme, G. (2006), Emergent Semantics in BibSonomy, in Christian Hochberger & Rüdiger Liskowsky, ed., 'Informatik 2006 -- Informatik für Menschen. Band 2' , Gesellschaft für Informatik, Bonn .

Hotho, A.; Jäschke, R.; Schmitz, C. & Stumme, G. (2006), Trend Detection in Folksonomies, in Yannis S. Avrithis; Yiannis Kompatsiaris; Steffen Staab & Noel E. O'Connor, ed., 'Proc. First International Conference on Semantics And Digital Media Technology (SAMT) ' , Springer, Heidelberg , pp. 56-70 .